Mouthguard



FIG. 1 is a perspective view of a mouthguard;

FIG. 2 is an alternate perspective view of the mouthguard of FIG. 1;

FIG. 3 is a side view thereof;

FIG. 4 is an opposite view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a back view thereof

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is an alternate perspective view of the mouthguard of FIG. 1.

In the above figures, the broken lines are for the purpose of illustrating the environment of the design and form no part of the claimed design.

The long and short broken lines represent bounds of the claimed design and form no part thereof. 

I claim the ornamental design for the mouthguard, as shown and described. 